Acquisitions (Details) (USD $) In Millions, unless otherwise specified				12 Months Ended		12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2012 La Model Ltd [Member]	Jul. 01, 2010 La Model Ltd [Member]	Dec. 31, 2012 La Model Ltd [Member] Patents [Member]
Business Acquisition [Line Items]
Percentage of outstanding shares acquired					100.00%
Cash consideration					$ 2.5
Contingent consideration, at fair value	3.3	2.1			1.5
Purchase price allocation, intangible assets					3.3
Goodwill	112.5	111.5	112.5		1.2
Purchase price allocation, deferred tax liabilities					0.6
Estimated useful life of finite-lived intangible assets						17 years
Estimated probable range for contingent consideration, payable period				5 years
Estimated probable range for contingent consideration, low				0
Estimated probable range for contingent consideration, high				$ 7.7